Mobility Solutions

New SMA130 triaxial sensor Acceleration sensor for infotainment systems

  • Acceleration sensor for telematics and built-in navigation
  • World’s smallest acceleration sensor for automotive applications
  • Energy efficient thanks to five energy-saving modes
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  • March 09, 2015
  • Mobility Solutions
  • Press releases
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press release

Bosch’s new SMA130 triaxial acceleration sensor provides information for infotainment and telematics applications in vehicles. “Until now, automakers have mainly used data from acceleration sensors for safety systems,” says Dr. Frank Schäfer, head of product management for automotive MEMS sensors. “The SMA130, on the other hand, delivers the data needed for eCall emergency notification and navigation systems.” The sensor measures acceleration along three axes arranged at right angles, as well as inclination, movement, vibration, and shock. The new Bosch acceleration sensor, based on MEMS technology, will go into series production in late 2015.

Measuring just 2 x 2 millimeters, the SMA 130 is the world’s smallest acceleration sensor for automotive applications, making it easy to install. Despite its tiny size, it provides measurements between ±2 g and ±16 g in high 14-bit resolution. This resolution, combined with the minuscule dimensions, places significant demands on the sensor’s circuit design. Yet the SMA130 consumes just 130 microamperes when active, making it highly energy efficient. Five user-defined energy-saving modes also reduce power consumption to as low as one microampere. This is essential for use in alarm systems, for example, to prevent the sensor from putting excess strain on the battery when the vehicle is parked for longer periods of time. The individual modes can be activated in less than two milliseconds. This guarantees that the respective application quickly and reliably receives the corresponding information from the sensor. In addition, a digital interface makes it possible to individually select four different sensor measuring ranges and set a variety of filter options. A built-in self-test ensures the reliability of the sensor signals. The new acceleration sensor is also AEC-Q100 qualified.

A sensor for a wide range of applications
The sensor signals can be used in a wide range of applications. In addition to data on vehicle acceleration, which is relevant for features such as the eCall service or the car’s alarm system, the SMA130 can also support the navigation system when GPS reception is poor by providing additional information. When several roads overlap, the sensor sends data on inclination to the navigation system, for example, allowing it to pinpoint the vehicle’s position.

Background to MEMS technology
Bosch has been at the forefront of MEMS (microelectromechanical systems) technology since the very beginning, and is today the world’s leading manufacturer of MEMS sensors. Its portfolio includes pressure, acceleration, and yaw-rate sensors, as well as combined inertia sensors, environmental sensors, and microphones for use in motor vehicles and consumer electronics. All Bosch MEMS sensors, including the SMA130, are RoHS-compliant.

More information on Bosch sensors is available at,

Readers’ contact:
Peter Spoden
Phone: +49 7121 35-38313

Mobility Solutions is the largest Bosch Group business sector. In 2015, its sales came to 41.7 billion euros, or 59 percent of total group sales. This makes the Bosch Group one of the leading automotive suppliers. The Mobility Solutions business sector combines the group’s expertise in three mobility domains – automation, electrification, and connectivity – and offers its customers integrated mobility solutions. Its main areas of activity are injection technology and powertrain peripherals for internal-combustion engines, diverse solutions for powertrain electrification, vehicle safety systems, driver-assistance and automated functions, technology for user-friendly infotainment as well as vehicle-to-vehicle and vehicle-to-infrastructure communication, repair-shop concepts, and technology and services for the automotive aftermarket. Bosch is synonymous with important automotive innovations, such as electronic engine management, the ESP anti-skid system, and common-rail diesel technology.

The Bosch Group is a leading global supplier of technology and services. It employs roughly 375,000 associates worldwide (as of December 31, 2015). The company generated sales of 70.6 billion euros in 2015. Its operations are divided into four business sectors: Mobility Solutions, Industrial Technology, Consumer Goods, and Energy and Building Technology. The Bosch Group comprises Robert Bosch GmbH and its roughly 440 subsidiaries and regional companies in some 60 countries. Including sales and service partners, Bosch’s global manufacturing and sales network covers some 150 countries. The basis for the company’s future growth is its innovative strength. Bosch employs 55,800 associates in research and development at 118 locations across the globe. The Bosch Group’s strategic objective is to deliver innovations for a connected life. Bosch improves quality of life worldwide with products and services that are innovative and spark enthusiasm. In short, Bosch creates technology that is “Invented for life.”

Further information is available online at and,

PI8819 - March 09, 2015

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